[llvm] [SLP]Transform stores + reverse to strided stores with stride -1, if profitable. (PR #90464)

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:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff 217c099eadfb9f2c5b5caf1af7b1ceb6a632cf74 6ff922637e514f1a9efebe2fc07c73b087830dd1 -- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 2cca7130a0..527a0a347b 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -7861,7 +7861,8 @@ void BoUpSLP::transformNodes() {
       break;
     }
     case Instruction::Store: {
-      Type *ScalarTy = cast<StoreInst>(E.getMainOp())->getValueOperand()->getType();
+      Type *ScalarTy =
+          cast<StoreInst>(E.getMainOp())->getValueOperand()->getType();
       auto *VecTy = FixedVectorType::get(ScalarTy, E.Scalars.size());
       Align CommonAlignment = computeCommonAlignment<StoreInst>(E.Scalars);
       // Check if profitable to represent consecutive load + reverse as strided

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https://github.com/llvm/llvm-project/pull/90464